The position of pins socket on Attitude V4 are different from other Fatshark goggles. You can cut or unsolder the original pins of receiver, and resolder a spare pins head that special for V4 goggles on it, the spare pins head is included in package .

FeaturesIntegrate buzzer and USB port

New OSD function(Only Achilles supports), can display the menu information on both receiver OLED and goggles screen(can be turned off), no need to take off the glasses when you adjust the parameter.

Adopt popular STM32 chip, advanced optimization on hardware design.

Reserved port for fatshark control for secondary development, enhance its functions and extend its period

Compatible with multi firmwares that created by many forum communities :(Download the firmware, burn it to receiver via CF, BF or INAV software, same as the way to burn firmware into the flight controller. Before you burn the firmware in it, press the BOOT and power on the receiver.)